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  1. #1
    Join Date
    Jul 2007
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    Columbus, OH
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    28

    Device to Warm Up Wall Thermostats

    Next week, I will be surveying 8 sites, each with about 20-30 Variable Refrigerant Units. I will not have access to a front-end, and am looking for a way to force each unit into a cooling mode to calculate the superheat.

    Ideally, I would like to find a device that I could attach to a wall sensor to temporarily raise the temperature, theoretically throwing the unit into cooling. Something like a handwarmer is what I had in mind.

    Does anyone know of such a device, or does anyone have other suggestions on how to accomplish my goal?

    Thanks in advance.

  2. #2
    Join Date
    Jan 2005
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    USA
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    1,460
    A hand warmer is actually a good idea. They are probably around 110* f and are cheap. Use some sort of reconfigured paper clip to hang it over the stat.

    Other wise if you know what type of stats you could possibly wire in a decade box and set it at the temp your trying to fake using the temp to ohm scale for the particular sensor.
    "It's always controls"

  3. #3
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    Dec 2006
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    What about a coffee machine, computer, fax or copier? Seems to work for regular office folk.

    kontrol out
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Open protocols? You can't handle open protocols!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora http://www.youtube.com/watch?v=U7fjDS0jKiE

  4. #4
    Join Date
    Jul 2007
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    Columbus, OH
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    28
    Quote Originally Posted by skwsproul View Post
    A hand warmer is actually a good idea. They are probably around 110* f and are cheap. Use some sort of reconfigured paper clip to hang it over the stat.

    Other wise if you know what type of stats you could possibly wire in a decade box and set it at the temp your trying to fake using the temp to ohm scale for the particular sensor.
    The only problem with the handwarmer is that they lose their heat after a few hours and I was looking to avoid having to carry around a case of them. I will be traveling with public transportation, so the more stuff I have with me, the bigger the hassle.

    Good thought on the the decade box, I was not aware of such a device. It won't work for my application, but good to know something like that is out there.

    Thanks for the useful advice.

  5. #5
    Join Date
    Feb 2007
    Location
    Helena, Montana
    Posts
    2,155
    We had a guy use a car battery warmer!
    Don't worry zombies are looking for brains, you're safe...

  6. #6
    Join Date
    Jul 2007
    Location
    Mount Airy, MD
    Posts
    7,281
    Quote Originally Posted by ac-inc View Post
    Next week, I will be surveying 8 sites, each with about 20-30 Variable Refrigerant Units. I will not have access to a front-end, and am looking for a way to force each unit into a cooling mode to calculate the superheat.

    Ideally, I would like to find a device that I could attach to a wall sensor to temporarily raise the temperature, theoretically throwing the unit into cooling. Something like a handwarmer is what I had in mind.

    Does anyone know of such a device, or does anyone have other suggestions on how to accomplish my goal?

    Thanks in advance.
    This is the reason that the user gave:
    I'm looking for useful advice, not a joke on how ignorant office workers are.
    This post has been reported by the OP for the reason above......

    So I am going to throw out the best advice I/we have here....

    Take a TECH with you and they will know how to accomplish this and be able to report the findings back to the office worker(s)

    No Joke

  7. #7
    Join Date
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    Dude if you don't have a sense of humour find another trade and site. If you can't laugh in this line of work you're going to drive yourself crazy. I know, I have.

    kontrol out
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Open protocols? You can't handle open protocols!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora http://www.youtube.com/watch?v=U7fjDS0jKiE

  8. #8
    Join Date
    Jul 2007
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    Mount Airy, MD
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    7,281
    to all:

    Phreak has lost it and has become a french fry salesman at a beach near you, you will notice him by the zero's and one's stuck in eye's, be aware, very aware

  9. #9
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    Dec 2006
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    It's being so close to France that has made me give up my sanity!

    Actually I am a little bit off due to the time change and will try not to post when I wake up first thing in the morning. As the Suisse call me dummkopf.

    kontrol out (have a fat Cuban and wet Scot that need my attention - and I'm not talking about people)
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Open protocols? You can't handle open protocols!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora http://www.youtube.com/watch?v=U7fjDS0jKiE

  10. #10
    Join Date
    Jul 2007
    Location
    Mount Airy, MD
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    7,281
    Quote Originally Posted by kontrolphreak View Post
    It's being so close to France that has made me give up my sanity!

    Actually I am a little bit off due to the time change and will try not to post when I wake up first thing in the morning. As the Suisse call me dummkopf.

    kontrol out (have a fat Cuban and wet Scot that need my attention - and I'm not talking about people)
    LMAO !! Where you at and the Cuban I know you saved for me? better yet...

  11. #11
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    Sitting in Turgi, just down the street from Baden (ABB HQ) and a train ride from Zurich.
    Drinking Johnnie Walker Explorers' Club Collection - The Spice Road whisky and a selection of Bolivar, Monte Christo and Romeo & Juliette. Tomorrow is my naked (birthday suite) day, JW ECC The Gold Route and Cohiba are on the itinerary, dinner and WWZ at the cinema (luckily ABB and Alstrom use English as their primary language and the local cinema show films in English with Suisse subtitles). Then the search for the JW ECC The Royal Route and something else to chuff on for an hour, any recommendations for a good smoke?

    kontrol out

    BTW so this isn't a , Zippo makes a hand warmer that uses lighter fluid. So you could carry it and a can of Zippo fluid. http://www.zippo.com/product.aspx?id=1025148

    kontrol out again
    Last edited by kontrolphreak; 07-03-2013 at 05:11 PM.
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Open protocols? You can't handle open protocols!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora http://www.youtube.com/watch?v=U7fjDS0jKiE

  12. #12
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    Jul 2007
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    Mount Airy, MD
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    Quote Originally Posted by kontrolphreak View Post
    Sitting in Turgi, just down the street from Baden (ABB HQ) and a train ride from Zurich.
    Drinking Johnnie Walker Explorers' Club Collection - The Spice Road whisky and a selection of Bolivar, Monte Christo and Romeo & Juliette. Tomorrow is my naked (birthday suite) day, JW ECC The Gold Route and Cohiba are on the itinerary, dinner and WWZ at the cinema (luckily ABB and Alstrom use English as there primary language and the local cinema show films in English with Suisse subtitles). Then the search for the JW ECC The Royal Route and something else to chuff on for an hour, any recommendations for a good smoke?

    kontrol out
    R&J can be dime store and IMO not as good as a Monte Christo .... JMO

    Time to check my humidor to see what I have left

  13. #13
    Join Date
    Mar 2005
    Location
    Pacific Time Zone
    Posts
    4,217
    A resistor in place of the tstat.

    Hand warmers are cheap, just buy multiple.

    The other option would be a material wrap and a microwave.

    Favorite to date, the ACID Kuba Kuba's. And happy belated birthday!
    "How it can be considered "Open" is beyond me. Calling it "voyeur-ed" would be more accurate." pka LeroyMac, SkyIsBlue, fka Freddy-B, Mongo, IndyBlue
    BIG Government = More Dependents
    "Any 'standard' would be great if it didn't get bastardised by corporate self interest." MatrixTransform
    http://threedevilskennel.com/ - not my website.
    Versatile Hunting Dog Federation - www.vhdf.org/


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